Cup



FIG. 1 is a front right perspective view showing our new design of a cup;

FIG. 2 is a front view thereof;

FIG. 3 is a right view thereof; and,

FIG. 4 is a bottom view thereof.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a cup, as shown and described. 